Hi, a few days ago when i was digging around i found a vivitar 1:3.8 macro lens and i attached it to my nikon d9.when i pressed the shutter button it would not shoot and it displayed f-- in the left bottom corner.i heard this came up when the lens could not communicate with the camera but this lens has not connection pins within it, so it is completely analog.Is there any setting i would need to change or anything i would need to do to make this camera shoot with this lens?
>>> I attached a lens my nikon d90 and i will not shoot and displays f-?